Show and Tell

Check out Erik's project. He demonstrates using an external timer for his ATMega 168
microcontroller to achieve a more accurate timing rather than using the internal timer.
Instead of showing his output on an LCD, since he didn't have enough pins available for
the LCD's 8-bit interface, he chose to show the results through serial communication on
his computer.

Everyone knows the first program is called the "Hello World" project. The Hello
World program is intended for the newbie programmer get their feet wet and be as
simple as possible. This is why, in the embedded realm, the Hello World programs
is to simply turn on an LED. Joe didn't want to settle for the typical Light up,
or blink the LED. He wanted to literally make a single
LED communicate. How would a single LED communicate? Using morse code, obviously.